The relevance of take-away materials and supporting activities has long been acknowledged through publications and lectures, but less effort has been allocated to enhancing the quality and effectiveness of these than to that of the exhibits. The flow chart (Fig. 14.1) is intended to draw attention to the way in which all aspects of communication with the visitor may be en­ hanced; and at the same time it distinguishes two quite different sorts of activity in which the exhibition team needs to engage if resources are to be fully exploited. It also summarises the essential features of the process of generating the three types of product that the approach requires. The boxes symbolise activities which are described briefly by their legends; annotated arrows symbolise information flows that are of particular interest in the present context; dotted arrows signify unspecified output/input relationships between the chains of activities. The column of activities down the left-hand side of the diagram summarises the way in which an exhibition department might operate. Implementation involves four chains of activities, not just the three that would be expected from the three com­ ponents identified above. This is to distinguish between two types of take-away material - those directly related to the exhibits and those that are relevant but have different origins.